Association of higher serum follicle-stimulating hormone levels with successful microdissection testicular sperm extraction outcomes in nonobstructive azoospermic men with reduced testicular volumes.

To investigate the impact of preoperative serum follicle-stimulating hormone (FSH) levels on the probability of testicular sperm retrieval, we conducted a study of nonobstructive azoospermic (NOA) men with different testicular volumes (TVs) who underwent microdissection testicular sperm extraction (micro-TESE). A total of 177 NOA patients undergoing micro-TESE for the first time from April 2019 to November 2022 in Shenzhen Zhongshan Obstetrics and Gynecology Hospital (formerly Shenzhen Zhongshan Urology Hospital, Shenzhen, China) were retrospectively reviewed. The subjects were divided into four groups based on average TV quartiles.

Sevoflurane regulates DICER1 expression by targeting miR-192-5p to protect cerebral ischemia-reperfusion injury in rats.

Sevoflurane is considered an effective neuroprotector in cerebral ischemia/reperfusion injury (CIRI). Sevoflurane preconditioning in CIRI, however, remains unknown precisely by its molecular mechanism. The middle cerebral artery occlusion reperfusion (MCAO/R) rat model was established, and neurological function was evaluated by Zea-Longa score.

Liver transplantation in a child with sclerosing cholangitis due to Langerhans cell histiocytosis: a case report.

Background: Langerhans cell histiocytosis (LCH) is a systemic neoplasia with diverse clinical manifestations, predominantly affecting bone and skin. However, in children, LCH presenting primarily with cholestasis is rare.

Case Summary: We present the case of a 22-month-old boy who was admitted to our hospital with a history of intermittent fever and abdominal distension for over 2 months, and jaundice for over 1 month.

Brainstem folding in an influenza child with Dandy-Walker variant.

Background: Influenza in children is a major cause of morbidity and mortality worldwide. Nervous system diseases are a factor relating to increased mortality rate. However, reports of how these underlying diseases contribute to the death of children with influenza are rare.

Crystal structures of the solid solutions NaZnCdBO and NaZnMgBO.

Two new penta-borates, tris-odium zinc cadmium penta-borate, NaZnCdBO, and tris-odium zinc magnesium penta-borate, NaZnMgBO, have been synthesized by high-temperature solution reactions at 1023 K. Their crystal structures were determined by single-crystal X-ray diffraction. Both solid solutions crystallize in the ortho-rhom-bic form of the parent compound NaZnBO (space group type , = 8) and contain the double ring [BO] anion composed of one BO tetra-hedron and four BO triangles as the basic structural motif.

[S100A4, a potential therapeutic target on bladder cancer stem cells].

Objective: To observe the effect of S100A4 gene silencing mediated by small interfering RNA (siRNA) on the proliferation of bladder cancer stem cells (CSCs) and their capacity of xenograft tumor formation.

Methods: MB49 bladder cancer stem cells (MCSCs) were isolated and identified. The differentially expressed protein S100A4 was identified in MCSCs using isobaric tags for relative and absolute quantitation technology (iTRAQ).

Detection of New Delhi Metallo-Beta-Lactamase (Encoded by bla ) in Enterobacter aerogenes in China.

Background: The increase in bla in Enterobacteriaceae has become a major concern worldwide. In previous study, we investigated clonal dissemination and mechanisms of resistance to carbapenem in China.

Methods: We carried out retrospective surveillance for bla among carbapenem-resistant enterobacter strains, which were isolated from patients at our hospital by bacterial strains selection, antimicrobial susceptibility testing, species identification, and molecular detection of resistance gene.

Intussusception patients older than 1 year tend to have early recurrence after pneumatic enema reduction.

Purpose: To identify age risk factors of early recurrent intussusception after pneumatic enema reduction. Management opinions are proposed.

Methods: Two thousand two hundred and ninety-five intussusception patients' medical records from January 2009 to December 2011 were retrospectively reviewed and analyzed.

Communicating bronchopulmonary foregut malformation type IA: radiologic anatomy and clinical dilemmas.

Background: Communicating bronchopulmonary foregut malformation (CBPFM) type IA is extremely rare and is associated with a high mortality rate. This malformation manifests with communication between the lung and the foregut, and this can lead to esophageal atresia and tracheoesophageal fistula (EA-TEF) to the distal pouch.

Purpose: To detail radiographic findings of CBPFM type IA cases and to summarize an appropriate therapeutic strategy for the management of this disorder.

Characteristic fragmentation behavior of tobacco-specific N-nitrosamines using electrospray ionization multistage tandem mass spectrometry incorporating deuterium labeling.

Rationale: Tobacco-specific N-nitrosamines (TSNAs) mainly include 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), N-nitrosonornicotine (NNN), N-nitrosoanabasine (NAB) and N-nitrosoanatabine (NAT) that are formed from tobacco alkaloids during the curing process and contained in tobacco and tobacco smoke. They are linked with carcinogenesis. Analytical methods for quality control of products and determination of their metabolites are therefore of great importance.

Poly[disodium [diaqua-tri-μ(2)-oxalato-dimagnesium(II)]].

The title compound, {Na(2)[Mg(2)(C(2)O(4))(3)(H(2)O)(2)]}(n), is isotypic with its Co analogue. There are two crystallographically independent oxalate groups in the asymmetric unit, one lying on an inversion center and the other on a general position. Mg(2+) ions are ligated by H(2)O mol-ecules and bridged by tri- and tetra-dentate oxalate ligands, forming ladder-like double chains that are held together via O-H⋯O hydrogen bonds, with Na(+) cations located between the chains to balance the charge.

A new polymorph of magnesium oxalate dihydrate.

In the asymmetric unit of the title compound, catena-poly[[diaqua-magnesium(II)]-μ-oxalato], [Mg(C(2)O(4))(H(2)O)(2)](n), there is one Mg atom in an octa-hedral coordination with site symmetry 222, a unique C atom of the oxalate anion lying on a twofold axis, an O atom of the anion in a general position and a water O atom at a site with imposed twofold rotation symmetry. The Mg(2+) ions are ligated by water mol-ecules and bridged by the anions to form chains that are held together by O-H⋯O hydrogen bonds. The structure of the title compound has already been reported in a different space group [Lagier, Pezerat & Dubernat (1969 ▶).

Increased oxidative stress and damage in patients with chronic bacterial prostatitis.

Objective: To investigate whether chronic bacterial prostatitis (CBP) increases oxidative stress and damage in patients with CBP, and to explore its possible mechanism.

Methods: Eighty patients with CBP and 80 healthy adults as controls were enrolled in a case-control study, in which levels of nitric oxide (NO), vitamin C (VC), and vitamin E (VE) in plasma, as well as malondialdehyde (MDA), activities of superoxide dismutase (SOD), and catalase (CAT) in erythrocytes were determined by spectrophotometry.

Results: Compared with the average values of NO, VC, VE, MDA, SOD, and CAT in the healthy control group, those of plasma NO and erythrocyte MDA in the CBP group were significantly increased (P < 0.

Overweight and obesity-induced oxidative stress in children.

Objective: To investigate whether overweight and obesity might cause oxidative stress and potential oxidative damage in overweight and obese children, and to explore its possible mechanism.

Methods: Eighty-five overweight and obese children (OOC), and eighty-five age-matched healthy children (HC) were recruited in this case-control study. The present study analyzed spectrophotometrically vitamin C (VC), vitamin E (VE), and 3-carotene (P-CAR) in plasma, as well as the activities of superoxide dismutase (SOD), catalase (CAT), and the level of malondialdehyde (MDA) in erythrocytes.

Lithium dioxobis[trioxoiodato(V)]vanadate, Li[VO2(IO3)2].

The title compound represents a new structure type, in which distorted VO6 octahedra are bridged by iodate groups to form infinite two-dimensional [VO2(IO3)2]- layers that are separated by octahedrally coordinated Li+ cations.

Increased oxidative stress and oxidative damage associated with chronic bacterial prostatitis.

Aim: To investigate whether chronic bacterial prostatitis might increase oxidative stress and oxidative damage in chronic bacterial prostatitis patients (CBPP), and to explore its possible mechanism.

Methods: Enrolled in a case-control study were 70 randomly sampled CBPP and 70 randomly sampled healthy adult volunteers (HAV), on whom plasma nitric oxide (NO), vitamin C (VC), vitamin E (VE) and beta-carotene (beta-CAR) level, erythrocyte malondialdehyde (MDA) level, as well as erythrocyte superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPX) activities were determined by spectrophotometry.

Results: Compared with the HAV group, values of plasma NO and erythrocyte MDA in the CBPP group were significantly increased (P < 0.

Increased oxidative stress in women with pregnancy-induced hypertension.

Objective: To investigate whether pregnancy-induced hypertension (PIH) may increase oxidative stress in women with PIH, and to explore the mechanisms by which PIH may increase oxidative stress and potential free radical damage.

Methods: Seventy women with PIH and seventy women with uncomplicated normotensive pregnancy (UNP) whose age, nutritional conditions, levels of hemoglobin and albumin were all matched, were enrolled in a randomized controlled trial. Their plasma concentrations of nitric oxide (NO), vitamin C (VC), vitamin E (VE), and beta-carotene (beta-CAR) as well as their erythrocyte malondialdehyde (MDA), and activities of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPX) were determined by spectrophotometry.

Gallium tris(iodate), Ga(IO3)3.

Ga(IO(3))(3) crystallizes in the space group P6(3), with the Ga atom at a site with imposed threefold symmetry. The crystal structure consists of slightly distorted GaO(6) octahedra that are bridged by I atoms of IO(3)(-) groups, giving rise to a three-dimensional polar network. The framework contains unoccupied hexagonal channels running parallel to the hexagonal [001] direction.

Cerium triiodate, Ce(IO(3))(3).

The crystal structure of Ce(IO3)3 consists of one-dimensional chains of edge-sharing CeO9 polyhedra which are crosslinked into two-dimensional layers through bridging IO3- groups. The layers are held together via long I..