Scabies in the Philippines: A Secondary Analysis of Local Patient Registries.

Background: Scabies is the second most common cause of disability among skin diseases in the Philippines as of 2019. There is no large nationwide study describing the epidemiologic profile of scabies in the country.

Objective: This study aimed to describe the demographic, seasonal, and geographic profile of scabies in the Philippines.

Single cell analysis in head and neck cancer reveals potential immune evasion mechanisms during early metastasis.

Profiling tumors at single-cell resolution provides an opportunity to understand complexities underpinning lymph-node metastases in head and neck squamous-cell carcinoma. Single-cell RNAseq (scRNAseq) analysis of cancer-cell trajectories identifies a subpopulation of pre-metastatic cells, driven by actionable pathways including AXL and AURK. Blocking these two proteins blunts tumor invasion in patient-derived cultures.

Distribution of pericellular matrix molecules in the temporomandibular joint and their chondroprotective effects against inflammation.

The objectives of this study were to (1) determine the distribution and synthesis of pericellular matrix (PCM) molecules (collagen VI, collagen IV and laminin) in rat temporomandibular joint (TMJ) and (2) investigate the effects of PCM molecules on chondrocytes against inflammation in osteoarthritis. Four zones (fibrous, proliferating, mature and hypertrophic) of condylar cartilage and three bands (anterior, intermediate and posterior) of disc were analysed by immunohistochemistry for the presence of PCM molecules in rat TMJs. Isolated chondrocytes were pre-treated with PCM molecules before being subjected to interleukin (IL)-1β treatment to stimulate inflammation.

Erosive esophagitis in the Philippines: a comparison between two time periods.

Background: In Asia, the incidence of gastroesophageal reflux disease diagnosed through endoscopy has increased from 3-9% to 14-16% in the last decade. The aim of this study was to determine the prevalence of erosive esophagitis (EE) over a span of 10 years in a tertiary care facility in the Philippines.

Methods: All patients diagnosed with EE from 1994 to 1997 (period A) and from 2000 to 2003 (period B) were included in the study.

Changing trends in peptic ulcer prevalence in a tertiary care setting in the Philippines: a seven-year study.

Background And Aims: The declining global prevalence of peptic ulcer disease (PUD) might be because of the decreasing prevalence of Helicobacter pylori (Hp) infection. The aims of the present study were to determine the prevalence of PUD during a 7-year period and to investigate its relationship with the prevalence of Hp infection during the same period.

Methods: All upper gastrointestinal endoscopies carried out at Santo Tomas Hospital in Manila from January 1996 to December 2002 were evaluated.

Thermal control of drug release by a responsive ion track membrane observed by radio tracer flow dialysis.

The combination of a responsive hydrogel with a rigid porous supporting structure yield a membrane with high mechanical strength and high on-off-permeability ratio. A membrane consisting of an ion track filter with a thermally responsive lining was prepared by penetrating a 19 micron thick foil of poly(ethylene terephthalate) (PET) with swift heavy ions at a fluence of 5 x 10(5) ions/cm2, followed by etching of the ion tracks to generate an ion track filter with 2.9 micron pore diameter, onto which a thin layer of poly(N-isopropylacrylamide) (NIPAAm) hydrogel was grafted.

Endoscopic hemostasis of bleeding peptic ulcers: 1:10000 adrenalin injection vs. 1:10000 adrenalin +1% aethoxysclerol injection vs. heater probe.

To evaluate the efficacy of three endoscopic methods which utilize different mechanisms of hemostasis to control bleeding peptic ulcers, we performed a prospective randomized study in 83 patients. Thirty-two patients were treated with 1:10000 adrenalin (Group I), 29 patients with 1:10000 adrenalin +1% aethoxysclerol (Group II), and 22 patients with the heater probe (Group III). Gastric ulcers were the source of bleeding in 14, 15 and 12 patients while duodenal ulcers were the source in 16, 13 and 10 patients in Groups I, II and III, respectively.

Corticotrophin releasing hormone (CRH1-41) stimulates the secretion of adrenocorticotrophin, vasopressin and oxytocin but not adrenocorticotrophin precursors: evidence from petrosal sinus sampling in man.

To examine the relationship between corticotrophin releasing hormone (CRH), arginine vasopressin (AVP) and oxytocin (OXT) we have studied the responses of adenohypophyseal and neurohypophyseal hormones to CRH in eight patients (age 26-64 years, six female) with suspected pituitary-dependent Cushing's syndrome during bilateral, simultaneous inferior petrosal sinus catheterization. Blood samples were taken from both petrosal sinuses and a peripheral vein before, and at 5-min intervals for 15 min after, an intravenous injection of 100 micrograms human CRH1-41. CRH increased sinus AVP concentrations in all eight patients and OXT concentrations in four of five patients studied.

Interaction of vasopressin and oxytocin with human breast carcinoma cells.

The arginine vasopressin and oxytocin content of normal and cancerous human breast tissue were measured using radioimmunoassay. Both peptides were present in amounts greater than that found in the circulation, but no difference between normal and malignant tissues was found. Binding of [3H]oxytocin and [3H]vasopressin were characterized in human breast carcinoma cells (MCF7 cells).

The responses of arginine vasopressin and adrenocorticotrophin to nausea induced by ipecacuanha.

Ipecacuanha syrup induces emesis by an early peripheral (gastric irritant) action and a later central effect at the chemoreceptor trigger zone (CTZ). We have studied the responses of plasma AVP, ACTH and ACTH-precursors to early and late ipecacuanha-induced nausea in nine healthy male subjects. Symptom severity was assessed using a linear analogue scale.

The effect of oxytocin on the plasma glucagon response to insulin-induced hypoglycaemia in man.

The presence of the classical neurohypophyseal hormone oxytocin has recently been described in the human pancreas in considerably higher concentrations than those found in peripheral plasma. Evidence in animals and man suggests that oxytocin can directly stimulate the secretion of glucagon from pancreatic islets. In order to investigate a possible paracrine role for oxytocin in the regulation of glucagon secretion we have studied the effect of oxytocin on the plasma glucagon response to insulin-induced hypoglycaemia in 10 lean fasted male subjects.

The effect of oxytocin infusion on adenohypophyseal function in man.

The responses of the adenohypophyseal hormones adrenocorticotrophin (ACTH), growth hormone (GH), thyroid stimulating hormone (TSH), prolactin, luteinizing hormone (LH) and follicle stimulating hormone (FSH) to sub-maximal doses of hypothalamic releasing factors were studied in six lean male volunteers (age 23-35 years) with and without infusions of oxytocin (OXT). OXT infusion (mean plasma concentration 133.6 +/- 2.

A comparison of head-down tilt with low-dose infusion of atrial natriuretic peptide in man.

1. Procedures that increase atrial pressure, such as head-down tilt, result in an increase in plasma atrial natriuretic peptide (ANP) and a natriuresis, but a direct cause-and-effect relationship between these two responses has not been established. This study was undertaken to compare the effects of head-down tilt with exogenous ANP on renal function.

Domperidone, a DA2-specific dopamine antagonist, has no effect on the renal or haemodynamic response to atrial natriuretic peptide in man.

1. Animal experiments have suggested that the renal effects of atrial natriuretic peptide (ANP) are dependent on dopaminergic activation, predominantly of the DA1-receptor. In man, there is evidence of dependence on the DA2-receptor for the natriuresis produced by central blood volume expansion.

The effect of oxytocin infusion on adenohypophysial and adrenal cortical responses to insulin-induced hypoglycaemia.

The responses of plasma adrenocorticotrophin (ACTH), cortisol, growth hormone (GH) and prolactin to insulin-induced hypoglycaemia were studied in six lean male subjects (age 22-29 years). Intravenous insulin tests were performed with and without oxytocin infusion. Blood sugar nadir occurred at the onset of symptoms (time S) with no significant differences between oxytocin and saline infusion.

Atrial natriuretic peptide inhibits osmolality-induced arginine vasopressin release in man.

1. Eight normal volunteers were infused with 5% saline (5 g of NaCl/100 ml) at a rate of 0.06 ml min-1 kg-1 for 120 min to increase plasma osmolality and plasma arginine vasopressin.

The response of plasma oxytocin to surgical stress.

Recent evidence suggests that oxytocin (OXT) and arginine vasopressin (AVP) are involved in the response to stress. We have examined the changes in peripheral plasma OXT during abdominal surgery in eight patients (six males, two female; ages 60-82 years) undergoing hemicolectomy and compared the results with those for AVP to the same stimulus. There was no significant change in systolic blood pressure, blood haematocrit or plasma sodium, osmolality or glucose.

Responses of plasma oxytocin and arginine vasopressin to nausea induced by apomorphine and ipecacuanha.

Apomorphine, a centrally-acting emetic, was administered subcutaneously (50 micrograms/kg) to nine normal subjects (four male, five female; aged 22-36 years) and four patients with idiopathic diabetes insipidus (DI) (one male, three female; aged 24-49 years). In the normal subjects this stimulus caused nausea (and vomiting in seven of nine) with a latency of 9.5 +/- 0.

Differential release of vasopressin and oxytocin in response to abdominal vagal afferent stimulation or apomorphine in the ferret.

The aim of this study was to investigate whether direct afferent stimulation of the abdominal vagus could promote release of the neurohypophyseal hormones. The nucleus of the solitary tract is the major recipient of vagal afferent information, and this region of the brainstem may also be activated by stimulation of the area postrema. For this reason apomorphine, a D2 dopaminergic agonist which acts on the area postrema, and can evoke vasopressin secretion in man, was also investigated for its effect on vasopressin and oxytocin release.

Endogenous vasopressin affects postural control of blood pressure in man.

1. Six healthy volunteers received intravenous infusions of isotonic (0.9% NaCl) and hypertonic (3% NaCl) saline on separate days.

Arginine vasopressin and oxytocin in the bovine adrenal gland.

The concentrations of immunoreactive oxytocin and arginine vasopressin (AVP) and their respective neurophysins (NpI and NpII) were compared in bovine adrenal cortex and medulla. While the concentration of AVP was similar in both tissues there was more NpII in the medulla. The medulla also contained much more oxytocin and NpI than the cortex.

Chronic hypernatraemia and hypothermia following subarachnoid haemorrhage.

We describe a 30 year old man who developed chronic adipsic hypernatraemia and hypothermia following a subarachnoid haemorrhage from an anterior communicating artery aneurysm. Anterior pituitary function tests were normal. Hypothermia was demonstrated over 4 years with loss of the ability to control heat conservation despite body temperatures as low as 30 degrees C.

Human platelet arginine vasopressin.

Approximately 90% of arginine vasopressin circulating in blood is associated with the platelets. Studies in six patients with cranial diabetes insipidus indicate that the platelet vasopressin originates in the hypothalamus and is taken up from plasma. Extracted platelet vasopressin is chromatographically identical to the posterior pituitary peptide and biologically active.

Effects of arginine vasopressin (AVP) infusions on circulating concentrations of platelet AVP, factor VIII: C and von Willebrand factor.

To study the possible role of arginine vasopressin (AVP) in the control of haemostasis AVP infusions at 3 doses (0.1, 0.2 and 0.

Haemodynamic effects of vasopressin in man are related to posture.

Ten healthy volunteers received intravenous infusions of arginine vasopressin (AVP) at 0.1 m-unit min-1 kg-1 and 5% D-glucose on separate days. AVP caused a small fall in forearm blood flow and small rises in mean arterial pressure and systemic vascular resistance.