Publications by authors named "Zheng Qiang Ma"

Objectives: To evaluate the associations between potentially avoidable diabetes-related emergency/urgent hospital admissions and different health insurance status (ie, Medicaid, Medicare, uninsured, private), along with other characteristics including sociodemographic status (age, race/ethnicity, gender, region), hospitalization status (previous hospitalizations, weekend admissions), and health status (complications, comorbidities), among patients with type 2 diabetes mellitus (T2DM).

Study Design: The 2011 data set of all inpatient discharge records with a primary diagnosis of T2DM from all hospitals in Pennsylvania were included in the analyses.

Methods: Multivariable logistic regression modeling with diabetes-related emergency/urgent hospitalizations as the dependent outcome variable and health insurance status as the main exposure independent variable, adjusting for age, race/ethnicity, gender, region, previous hospitalizations, weekend admissions, complications, and comorbidity.

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The characterization of yield trait mutants is important for understanding the regulation of grain yield formation in staple food crops. Meh0239 is a yield trait-related mutant identified from a mutant library of the common wheat cultivar Wangshuibai created by ethylmethyl sulfide (EMS) treatment of dry seeds. To shed some light on the nature of this mutation, it was investigated morphologically, physiologically, anatomically and genetically.

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Article Synopsis
  • The CRY gene family in plants encodes photoreceptors that help regulate their growth in response to blue light, with this study focusing on hexaploid wheat.
  • Researchers identified and characterized several CRY gene homologs (CRY1a, CRY1b, and CRY2) using PCR techniques and traced their lineage back to wheat's ancestral species.
  • They confirmed that certain CRY genes are single copy and located on specific chromosomes, while a phylogenetic analysis revealed that the diversification of the CRY gene subfamily predates the split between monocots and dicots.
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The dominant male sterility gene Ms2 in wheat has been widely used in recurrent selection and variety improvement. Identification of genes associated with the male sterility in Ms2-carrying wheat will help us understand how Ms2 functions. Using a pair of isogenic lines of Ms2, subtractive hybridization was conducted with cDNA from bulked spikelets at meiophase of sterile plants as the tester and cDNA from the same tissues of fertile plants as the driver.

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The cDNA encoding TOM7 (translocase of outer mitochondrial membrane subunit 7) like protein in wheat was cloned through RT-PCR, and its genomic DNA fragment was subsequently cloned. This gene was tentatively designated as TaTOM7. It has no intron in the coding region and its product possesses one hydrophobic trans-membrane domain in the middle, and one hydrophilic domain in the N-terminal and C-terminal domain, respectively.

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To understand wheat powdery mildew resistance mechanism, reverse-transcription polymerase chain reaction (RT-PCR) and cDNA library screening were performed to isolate the full-length cDNA of wheat thaumatin protein gene from wheat-Haynaldia villosa 6VS/6AL translocation line. The putative amino acid sequence of this gene consists of 173 amino acid residues, and is an acid polypeptide. It was highly homologous to thaumatin proteins isolated from other plants, so it is designated as TaTLP1 (GenBank accession number: AF384146).

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Wheat scab can cause significant yield lost and quality decrease as well as toxicoses in animals and humans. Sumai 3, a resistant cultivatr to scab, is widely used in the wheat breeding of scab resistance. To study the inheritance of resistance to scab in Sumai 3, the highly susceptible cultivar Chuan 980 was crossed with Sumai 3 and backcrossed with Sumai 3 as a recurrent parent for seven times, thus a near-isogenic line S016 susceptible to scab was developed.

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To isolate genes related to resistance to Erysiphe graminis (Blumeria graminis) DC. f. sp.

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Twenty six DNA probes from seven homoeologous groups of triticeae were screened to reveal the RFLP between 45 wheat-R. kamoji derivatives and their parents R. kamoji, Chinese Spring, Yangmai 5.

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