Micro-flow imaging multi-instrument evaluation for sub-visible particle detection.

Sub-visible particles (SVPs) in pharmaceutical products are a critical quality attribute, and therefore should be monitored during development. Although light obscuration (LO) and microscopic particle count tests are the primary pharmacopeial methods used to quantify SVPs, flow imaging methods like Micro-Flow Imaging (MFI™) appear to overcome shortcomings of LO such as limited sensitivity concerning smaller translucent SVPs in the size range < 10 µm. Nowadays, MFI™ is routinely utilized during development of biologicals.

Surface tailored zein as a novel delivery system for hypericin: Application in photodynamic therapy.

Zein is an FDA-approved maize protein featured by its manipulative surface and the possibility of fabrication into nanomaterials. Although extensive research has been carried out in zein-based technology, limited work is available for the application of zein in the field of cancer photodynamic therapy (PDT). In this work, we report zein as a carrier for the natural photosensitizer hypericin in the PDT of hepatocellular carcinoma in vitro.

Genetic and clinical characteristics of pediatric patients with familial hemophagocytic lymphohistiocytosis.

Background: Our study was designed to investigate the frequencies and distributions of familial hemophagocytic lymphohistiocytosis (FHL) associated genes in Saudi patients.

Methods: FHL associated gene screening was performed on 87 Saudi patients who were diagnosed with hemophagocytic lymphohistiocytosis (HLH) between 1995 and 2014. The clinical and biochemical profiles were also retrospectively captured and analyzed.

Incidence, clinical distribution, and patient characteristics of childhood cancer in Saudi Arabia: A population-based analysis.

Purpose: Information regarding the incidence and patterns of childhood malignancies is disproportionately overrepresented by high-income countries, representing mainly the Caucasian population. There is a need to evaluate and disseminate information for other ethnicities, particularly from the Middle East.

Methods: Data from the National Cancer Registry, Saudi Arabia (SA-NCR), for pediatric patients (age 0-14 years) diagnosed between 2005 and 2009 and for similar patients at our institution during the same period were analyzed.

Low rate of human papillomavirus vaccination among schoolgirls in Lebanon: barriers to vaccination with a focus on mothers' knowledge about available vaccines.

Background: Human papillomavirus (HPV) infection is an established predisposing factor of cervical cancer. In this study, we assessed the awareness about genital warts, cervical cancer, and HPV vaccine among mothers having girls who are at the age of primary HPV vaccination attending a group of schools in Lebanon. We also assessed the rate of HPV vaccination among these girls and the barriers to vaccination in this community.

Prescription Patterns for Tigecycline in Severely Ill Patients for Non-FDA Approved Indications in a Developing Country: A Compromised Outcome.

With the rise in antibiotic resistance, tigecycline has been used frequently in off-label indications, based on its activity against multidrug-resistant organisms. In this study, our aim was to assess its use in approved and unapproved indications. This is a retrospective chart review evaluating a 2-year experience of tigecycline use for > 72 h in 153 adult patients inside and outside critical care unit from January 2012 to December 2013 in a Lebanese tertiary-care hospital.

Retrospective Analysis on the Use of Amphotericin B Lipid Complex in Neutropenic Cancer Patients with Suspected Fungal Infections in Lebanon, a Single Center Experience and Review of International Guidelines.

Introduction: Immunocompromised patients carry a high risk for invasive fungal disease (IFD), which is associated with high mortality.

Materials And Methods: This is a retrospective chart review of a 4-year experience of amphotericin B lipid complex (ABLC) utilization for the management of suspected IFD at the Hematology/Oncology and Bone Marrow Transplantation unit at Makassed General Hospital, Beirut, Lebanon between January 2011 and December 2014. We focused on treatment strategy, response rate, and adverse drug events associated with ABLC therapy.

Hypocalcemia due to hypoparathyroidism in beta-thalassemia major patients.

Background: This is a retrospective analysis of case records of AA(2)-thalassemia major patients who developed hypoparathyroidism (HPT). The objective of this study was to assess the prevalence of hypocalcemia and hypoparathyroidism in AA(2)-thalassemia major patients being followed at King Khalid University Hospital (KKUH), Riyadh, Saudi Arabia.

Patients And Methods: Diagnosis was based on low serum calcium (S/Ca), high serum phosphate (Po4), normal serum magnesium and alkaline phosphatase, and low serum parathyroid hormone levels.

A novel splice site mutation in the WAS gene causes Wiskott-Aldrich syndrome in two siblings of a Saudi family.

We report here on a Saudi family with two affected males with Wiskott-Aldrich syndrome (WAS), which includes mild to moderate bleeding and a low platelet count. A novel splice donor-site mutation (811 + 5 G <-- C) in intron 8 of the WAS gene (Genbank accession number NM_000377) was detected in a hemizygous status in both index cases, heterozygous in their mother and absent in the father. RNA from both index cases was transcribed and amplified with primers complementary to sequences in exons 7 and 10.

Localised Ewing sarcoma/PNET of bone--prognostic factors and international data comparison.

Background: To determine if the distribution of prognostic factors accounted for the differences when the outcome for localised Ewing Sarcoma/PNET bone in Saudi Arabia was compared with results from countries with well developed health care systems.

Procedure: Retrospective analysis was undertaken of 163 consecutive patients of all ages, treated with radical intent at KFSHRC from 1975 to 1998. Standard chemotherapy was commenced in all patients.

Metastatic Ewing sarcoma/PNET of bone at diagnosis: prognostic factors--a report from Saudi Arabia.

Background: To evaluate outcome and prognostic factors in Saudi Arabian patients with metastatic Ewing sarcoma and PNET of bone (PMES) at diagnosis.

Procedure: Ninety-nine of 304 (33%) consecutive patients with Ewing sarcoma and PNET of bone registered at our centre from 1975 to 1998, had metastatic disease at registration and 93 were available for analysis. The maximum x-axis diameter of the primary tumor was used as the measure of primary tumor size.

Bone marrow transplantation from matched siblings in patients with fanconi anemia utilizing low-dose cyclophosphamide, thoracoabdominal radiation and antithymocyte globulin.

Nineteen patients with Fanconi anemia (FA) and bone marrow failure underwent bone marrow transplantation (BMT) from matched siblings. Median age at BMT was 8.7 years.

Extramedullary myeloid tumors in children: the limited value of local treatment.

Purpose: To determine the incidence of extramedullary tumors (EMT) in Saudi Arabian children with acute myeloid leukemia, the factors associated with these tumors and the impact of local treatment on local tumor control, complete remission and survival rates.

Patients And Methods: One hundred children, median age 6 years, who received their primary treatment for acute myeloid leukemia at King Faisal Specialist Hospital and Research Center, from 1983 to 1997 were studied. EMT at diagnosis occurred in 18 (18%) patients at 25 sites.

Epstein-Barr virus-associated leiomyosarcoma of the thyroid in a child with congenital immunodeficiency: a case report.

We report an unusual case of multifocal leiomyosarcoma involving the thyroid gland, liver, and right lung in a child with congenital immunodeficiency disease. The smooth muscle nature of these neoplasms was confirmed by immunohistochemistry and electron microscopic studies. In situ hybridization showed large amounts of Epstein-Barr virus messenger RNA within the tumor cells.

Piracetam for the treatment of sickle cell disease in children- a double blind test.

Full text is available as a scanned copy of the original print version.

Laparoscopic cholecystectomy: The treatment of choice for cholelithiasis in infancy and childhood.

Twelve consecutive laparoscopic cholecystectomies (LC) were performed between January 1994 and October 1996 at King Khalid University Hospital. In all patients the indication for cholecystectomy was symptomatic gallstones. Among the 12 children, six had sickle cell disease.

Hepatitis C virus infection in two groups of paediatric patients: one maintained on haemodialysis and the other on continuous ambulatory peritoneal dialysis.

Seropositivity to hepatitis C virus (HCV) was evaluated in three groups of Saudi children. One group (n = 18) was maintained on haemodialysis and another group (n = 21) on continuous ambulatory peritoneal dialysis (CAPD). The third group were community-based normal controls.

Hepatitis E virus infection in patients from Saudi Arabia with sickle cell anaemia and beta-thalassemia major: possible transmission by blood transfusion.

The seroprevalence of antibodies against hepatitis E virus (HEV) and hepatitis C virus (HCV) was investigated in Saudi children with sickle cell anaemia (SCA) (50 patients: 28 boys, 22 girls; age range 2-14 years) and beta-thalassemia major (28 patients: 12 boys, 16 girls; age range 2-12 years). The SCA patients were from the Gizan area (South) while the thalassemics were from the Riyadh area (Central province). The prevalence of hepatitis E virus antibody (HEVAb) in patients with SCA (18.

Hereditary bleeding disorders in Riyadh, Saudi Arabia.

The result of an eight-year retrospective analysis of patients with hereditary bleeding disorders (HBD) at King Khalid University Hospital, Riyadh, is presented. One hundred and sixty-eight patients referred for investigation for suspected bleeding disorders had bleeding symptoms which fulfilled the criteria for HBD and were categorized as follows: 1) coagulation factor deficiencies: 41 patients had hemophilia A, while 16 had hemophila B; two patients each had factors XI and XII deficiency; four patients each had factors V and VIII deficiency and one patient had factor VII deficiency. There were two patients with dysfibrinogenemias and one with afibrinogenemia.

Piracetam is useful in the treatment of children with sickle cell disease.

The management of children suffering from sickle cell disease [sickle cell anaemia (SCA) and sickle cell beta degree-thalassaemia (S beta degree-thal.)] has been the concern of all clinicians caring for these patients. Several agents have been tried for treatment, often limited by toxic side effects.

Acute viral hepatitis, glucose-6-phosphate dehydrogenase deficiency and prolonged acute renal failure: a case report.

A 10-year-old boy with glucose-6-phosphate dehydrogenase deficiency developed acute renal failure during the icteric phase of non-fulminant hepatitis A infection. He needed peritoneal dialysis for 54 days. Acute tubular necrosis was confirmed by percutaneous renal biopsy.