Three Novel Pathogenic Variants in Unrelated Vietnamese Patients with Cardiomyopathy.

: Cardiomyopathy, including dilated cardiomyopathy (DCM) and hypertrophic cardiomyopathy (HCM), is a major cause of heart failure (HF) and a leading indication for heart transplantation. Of these patients, 20-50% have a genetic cause, so understanding the genetic basis of cardiomyopathy will provide knowledge about the pathogenesis of the disease for diagnosis, treatment, prevention, and genetic counseling for families. : This study collected nine patients from different Vietnamese families for genetic analysis at The Cardiovascular Center, E Hospital, Hanoi, Vietnam.

Molecular characterization of Cryptosporidium and Giardia in environmental samples and faecal samples from biogas users in Bac Giang, Vietnam.

Little is known about Cryptosporidium and Giardia in biogas waste and humans in Vietnam. There is a potential risk of infections during or after using the biogas system. The detected protozoan genotypes are zoonotic pathogens, and contamination of vegetables may relay through runoff to the surface waters and soil.

Chemical Profile and Antioxidant Capacity of Propolis from , , and Stingless Bee Species in Vietnam.

The present study aimed to analyze and compare the chemical profile and antioxidant capacity of propolis from different bee species and different regions. The chemical profiles of propolis from six stingless bee species (, , , , and ) collected from a total of eight locations in Vietnam were investigated by gas chromatography-mass spectrometry (GC-MS). More than 70 compounds were identified, amongst which phenolic lipids (cardanols, resorcinols and anacardic acids), aromatic acids, triterpenes and xanthones.

Mangifera indica as propolis source: what exactly do bees collect?

Objective: The mango tree Mangifera indica is known as one of the botanical sources of propolis in Tropical regions. There are two different materials which bees can collect from a mango tree to produce propolis: the resin of the tree bark, and the latex found on the fruits. We performed the study of the chemical profile of mango resin in comparison with propolis in order to clarify its importance as propolis source.

New dihydrochromene and xanthone derivatives from Lisotrigona furva propolis.

A new dihydrochromene derivative, named lisofurvin (1) and a xanthone, named dihydrobrasixanthone B (2) together with twenty one known compounds (3-23) were isolated from propolis of the stingless bee Lisotrigona furva. Their chemical structures were determined by means of spectroscopic methods including 1D and 2D NMR, and MS. The chemical constituents are predominantly geranyl(oxy) xanthones and Cratoxylum cochinchinense was suggested as a resin source, besides two other plants Mangifera indica and dammar trees (Dipterocarpaceae).

Discovery of four new species of Trichrysis Lichtenstein, cyanea species group (Hymenoptera, Chrysididae) from Vietnam.

Four species of the genus Trichrysis Lichtenstein, 1876 are described from Vietnam as new for science: T. aliciae Wiśniowski, sp. nov.

Contribution to the taxonomy of the paper wasp genus Polistes (Polistella) (Hymenoptera: Vespidae: Polistinae) from Vietnam, with description of a new species.

One species of the genus Polistes, Polistes (Polistella) caobangensis Nguyen, sp. nov. is described from the northern part of Vietnam.

Taxonomic notes on the genus Pseumenes Giordani Soika, 1935 (Hymenoptera: Vespidae: Eumeninae) from Vietnam with key to all known species in the Oriental region.

There are two species of the genus Pseumenes Giordani Soika, 1935 occurring in Vietnam, Pseumenes depressus depressus (de Saussure, 1855) and a new species, Pseumenes fulvus Nguyen. The new species is described and figured. A key to all known species of this genus from the Oriental region is provided.

Phytochemical analysis of Vietnamese propolis produced by the stingless bee Lisotrigona cacciae.

Propolis produced by the stingless bee Lisotrigona cacciae was studied for the first time. Using different chromatographic procedures, a total of eighteen constituents (phenols and triterpenes) were isolated, among which flavane 1, homoisoflavanes 2-4, and xanthones 5 and 6 were new for propolis. Propolis extract was also characterized by gas chromatography/mass spectrometry and other fifteen constituents were identified.

Acceptability and Feasibility of Delivering Pentavalent Vaccines in a Compact, Prefilled, Autodisable Device in Vietnam and Senegal.

Background: Prefilled syringes are the standard in developed countries but logistic and financial barriers prevent their widespread use in developing countries. The current study evaluated use of a compact, prefilled, autodisable device (CPAD) to deliver pentavalent vaccine by field actors in Senegal and Vietnam.

Methods: We conducted a logistic, programmatic, and anthropological study that included a) interviews of immunization staff at different health system levels and parents attending immunization sessions; b) observation of immunization sessions including CPAD use on oranges; and c) document review.

Human papillomavirus vaccine introduction in Vietnam: formative research findings.

Background: Formative research is a useful tool for designing new health interventions. This paper presents key findings from formative research conducted in Vietnam to guide human papillomavirus (HPV) vaccine introduction.

Methods: We explored the sociocultural environment, health system capacity and the policy-making process using a combined quantitative and qualitative methodology.

Community knowledge, attitudes, and practices toward rabies prevention in North Vietnam.

In recent years, despite the accessibility to vaccines (both for humans and animals), rabies remains a problem in many areas of Vietnam. While the number of rabies deaths decreased by 90% from 1994 to 2003, the number of rabies deaths increased from 2004 to 2007. In 2007, the number of rabies victims was 2-3 times higher than in 2003 and 131 people died as a result of rabies.